Washington County, Kentucky (Formed 1792)
                Land Area          
Year  Population  (sq.mi)   Density
2010     11,717     297.3     39.4
2000     10,916     300.6     36.3
1990     10,441     300.6     34.7
1980     10,764     300.6     35.8
1970     10,728     300.6     35.7
1960     11,168     300.6     37.2
1950     12,777     300.6     42.5
1940     12,965     300.6     43.1
1930     12,623     300.6     42.0
1920     14,773     300.6     49.1
1910     13,940     299.0     46.6
1900     14,182     319.0     44.5
1890     13,622     319.0     42.7
1880     14,419     298.6     48.3
1870     12,464     298.6     41.7
1860     11,575     300.7     38.5
1850     12,194     298.6     40.8
1840     10,596     300.8     35.2
1830     19,017     603.1     31.5
1820     15,947     653.6     24.4
1810     13,248     653.6     20.3
1800      9,050     647.2     14.0